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RSP vs SPY: Performance & Backtest Comparison

RSP delivered the higher return - 11.08% CAGR vs 10.95% - over 2005-03-31 → 2026-06-30.
RSP was not publicly traded 2017-12-31 → 2017-12-31 (1 months) - treated as uninvested cash (0%) for that stretch.
RSP: source dividend records are incomplete before 2009-01-01 - returns understate by roughly 1.1%/yr in that era.

Growth comparison

Drawdown

Annual returns

RSPSPY
NameInvesco S&P 500 Equal Weight ETFState Street SPDR S&P 500 ETF Trust
CAGR11.08%10.95%
Total return841.56%818.17%
Volatility19.52%14.92%
Max drawdown-56.79%Feb 2009-50.78%Feb 2009
Sharpe0.540.66
Sortino0.840.89
Best year42.19%32.31%
Worst year-41.08%-36.79%
Final balance$94,156$91,817

Correlation of monthly returns: 0.86. Wondering if you need both? Check their fund overlap →

All figures are total returns: every dividend and distribution is reinvested on its ex-date, and prices are split-adjusted. See the methodology.

Which has performed better, RSP or SPY?

Over 2005-03-31 to 2026-06-30, RSP performed better: 11.08% annualized versus 10.95% for SPY, with dividends reinvested. Past performance does not guarantee future results.

How similar are RSP and SPY?

Their monthly returns have a correlation of 0.86 over the common period. RSP is Invesco S&P 500 Equal Weight ETF; SPY is State Street SPDR S&P 500 ETF Trust.

Which is riskier, RSP or SPY?

Over the common period RSP had 19.52% annualized volatility and a -56.79% max drawdown, versus 14.92% and -50.78% for SPY.